Rhyolite lan Obsidian Definition

Rhyolite

Obsidian

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1 Definition

1.1 definisi

rhyolite punika rock igneous nggoleki-grained kang sugih ing silika

obsidian punika kaca vulkanik alami kawangun minangka rock igneous extrusive. diprodhuksi nalika lahar felsic extruded saka gunung mbledhos ndingin kanthi cepet karo wutah kristal minimal

1.2 Sajarah

1.2.1 asal

lor amerika

Ethiopia

1.2.2 panemu

Ferdinand von Richthofen

obsius

1.3 Etimologi

saka rhyolit german, saka stream lahar greek rhuax + watu lithos

saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius

1.4 kelas

batuan beku

1.4.1 sub-kelas

awet rock, hard rock

awet rock, medium atose rock

1.5 kulawarga

1.5.1 group

vulkanik

1.6 kategori liyane

rock grained coarse, rock opaque

rock opaque

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